Warren Buffett on Jamie Dimon, a divided Congress and Oreos for breakfast (from the archives)

Warren Buffett, of Berkshire Hathaway; Jeff Bezos, of Amazon; and Jamie Dimon, of JPMorgan Chase, announced they would form a health care company together. We thought it was a perfect time to revisit this interview.

We talked with Buffett back in 2012 about Dimon, the business decisions he regrets, and yes, eating Oreos for breakfast. Buffett had recently released a book with Carol Loomis, a longtime financial journalist who had covered Buffett's career. She joined him for this interview.